CN212661464U

CN212661464U - Height-adjustable chair armrest

Info

Publication number: CN212661464U
Application number: CN202021492154.4U
Authority: CN
Inventors: 林耀宗
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-07-24
Filing date: 2020-07-24
Publication date: 2021-03-09
Anticipated expiration: 2030-07-24

Abstract

The utility model discloses a height-adjustable chair armrest, which comprises an armrest part, an armrest seat and a lifting pressing piece for adjusting the height of the armrest seat, and is characterized in that the armrest seat is connected with the lifting pressing piece through a hinged seat, a clamping sleeve is arranged corresponding to the lifting pressing piece, and the clamping sleeve is fixed with the chair; the clamping sleeve is provided with a plurality of groups of clamping grooves and connecting grooves communicated with the clamping grooves; the lifting pressing piece comprises a transverse pressing head and a longitudinal supporting rod, the transverse pressing head is hinged to one end of the longitudinal supporting rod, the middle of the longitudinal supporting rod is rotatably installed through a first connecting rod, and a second connecting rod matched with the clamping groove and the connecting groove is arranged at the other end of the longitudinal supporting rod. The utility model discloses simple structure, regulation are smoothly difficult for the card dead, effectively improve user's use comfort.

Description

Height-adjustable chair armrest

Technical Field

The utility model relates to the technical field of seats, specifically relate to a height-adjustable's armrest.

Background

The office chair is an indispensable article for modern office work and is widely applied to various companies and public places. However, most office chairs on the market are produced in batches according to fixed specifications, all parts cannot be adjusted adaptively after being installed, and particularly, the requirements of different heights of users or different situations such as sitting postures of the users after sitting on the armrests are not considered, so that the comfort level of the user experience is still deficient.

A publication No. CN2682929Y discloses a height adjustable armrest device, which is characterized in that: the positioning device comprises a base, a support frame, a pull rod, a positioning bolt and a sliding sleeve, wherein the support frame, the pull rod, the positioning bolt and the sliding sleeve are all sleeved in the base and are contained by the base; the post rod is provided with an inclined hole capable of changing the position of the positioning bolt, the sliding sleeve is provided with a position corresponding to the positioning hole and spacing grooves which are staggered in space and face the positioning hole, one end of the positioning bolt falls in the spacing grooves, and the other end of the positioning bolt passes through the inclined positioning hole and falls in the sliding grooves, wherein the sliding sleeve, the pull rod and the base are in a linkage relation. However, the patent needs a special sliding sleeve, and during operation, the position of the positioning bolt between the positioning part and the semicircular tooth is switched through the inclined positioning hole and the limiting grooves which are arranged on the sliding sleeve in a staggered manner; the problems of complex structure and easy locking exist.

Disclosure of Invention

The utility model aims at providing a height-adjustable seat armrest which has simple structure and smooth adjustment and is not easy to block in order to solve the defects of the prior art.

The utility model discloses an adopt following technical solution to realize above-mentioned purpose:

a height-adjustable chair armrest comprises an armrest part, an armrest seat and a lifting pressing piece for adjusting the height of the armrest seat, and is characterized in that the armrest seat is connected with the lifting pressing piece through a hinged seat, a clamping sleeve is arranged corresponding to the lifting pressing piece, and the clamping sleeve is fixed with a chair; the clamping sleeve is provided with a plurality of groups of clamping grooves and connecting grooves communicated with the clamping grooves; the lifting pressing piece comprises a transverse pressing head and a longitudinal supporting rod, the transverse pressing head is hinged to one end of the longitudinal supporting rod, the middle of the longitudinal supporting rod is rotatably installed through a first connecting rod, and a second connecting rod matched with the clamping groove and the connecting groove is arranged at the other end of the longitudinal supporting rod.

As a further explanation of the above scheme, the lifting button comprises an inner cylinder, and the longitudinal strut is installed in the inner cylinder and is hinged with the inner cylinder through the first connecting rod.

Furthermore, a strip-shaped hollow groove matched with the second connecting rod is formed in the inner cylinder, and the end part of the second connecting rod penetrates out of the strip-shaped hollow groove and then extends into the clamping groove and the connecting groove.

Furthermore, the screens groove with the spread groove is including two sets of that the symmetry set up, is located respectively the telescopic both sides of joint.

Furthermore, a movable connecting plate is arranged between the armrest seat and the hinged seat, a plurality of groups of convex ribs arranged along the length direction are arranged at the top of the movable connecting plate, and a sliding groove matched with the convex ribs is arranged at the bottom of the armrest seat; the mounting structure of the movable connecting plate is as follows: the armrest seat is provided with a hollow cavity, a sliding block is arranged in the hollow cavity, and a hollow groove communicated with the hollow cavity is formed in the bottom of the armrest seat; a first upright post is arranged at the top of the hinge seat, a first arc-shaped groove matched with the first upright post is formed in the movable connecting plate, and the first arc-shaped groove is arranged along the length direction; the first upright post penetrates through the first arc-shaped groove and then is connected with the sliding block.

Furthermore, a plurality of second arc-shaped grooves are formed in the movable connecting plate, and second upright posts matched with the second arc-shaped grooves are arranged on the hinge seats; the second arc-shaped groove is arranged along the width direction.

Further, the armrest seat comprises an armrest seat surface cover and an armrest seat bottom cover which are assembled together, and the sliding block is arranged in the armrest seat bottom cover.

Furthermore, a connecting arm is covered outside the clamping sleeve, and the clamping sleeve is fixedly connected with the seat through the connecting arm.

Furthermore, a sleeve for decoration is sleeved outside the connecting arm, the sleeve is fixed with the bottom of the armrest seat and can slide relative to the connecting arm, and a first through hole for the transverse press head to pass through is formed in the sleeve.

The utility model adopts the beneficial effect that above-mentioned technical solution can reach is:

1. the utility model discloses a set up swing joint board, articulated seat between handrail seat and linking arm, wherein it has the lift to press to articulate bottom the articulated seat, presses and transversely to press the head and can make branch rotate around first connecting rod for the second connecting rod of bottom breaks away from the screens groove, and handrail seat freely goes up and down on the joint sleeve, with the screens groove joint of another position under reset spring or manual operation, has realized the free regulation of handrail height, simple structure, regulation smoothly difficult card die.

2. The movable connecting plate is arranged, the convex edge and the sliding groove are arranged between the movable connecting plate and the armrest seat, the first arc-shaped groove matched with the first upright post is arranged on the movable connecting plate, the armrest seat can slide back and forth relative to the movable connecting plate by pushing, and the free adjustment of the front and rear positions of the armrest is realized; and the first arc-shaped groove can play a role in front and back limiting, and the armrest seat is prevented from accidentally sliding after being adjusted in place.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic structural view of the bushing of fig. 1 with the bushing removed.

Fig. 3 is a schematic view of the internal structure of fig. 2 with the connecting arm hidden.

Fig. 4 is a schematic view of the internal structure of the clamping sleeve shown in fig. 3 with a portion hidden.

Fig. 5 is a schematic view of the inner barrel of fig. 4 with the inner barrel hidden.

Fig. 6 is a schematic view of the internal structure of the longitudinal strut of fig. 5 with the longitudinal strut hidden.

Fig. 7 is an exploded view of a part of the structure of the present invention.

Fig. 8 is an exploded view of the internal structure of fig. 7.

Fig. 9 is another angle view of fig. 8. Description of reference numerals: 1. the handrail part comprises a handrail part 2, a handrail seat 2-1, a sliding block 2-2, a hollow groove 2-3, a handrail seat surface cover 2-4, a handrail seat bottom cover 3, a lifting press piece 3-1, a transverse press head 3-2, a longitudinal supporting rod 3-3, an inner cylinder 3-4, a strip-shaped hollow groove 4, a hinged seat 4-1, a first upright post 4-2, a second upright post 5, a clamping sleeve 5-1, a clamping groove 5-2, a connecting groove 6, a first connecting rod 7, a second connecting rod 8, a movable connecting plate 8-1, a first arc-shaped groove 8-2, a second arc-shaped groove 8-3, a convex edge 8-4, a sliding groove 9, a connecting arm 10, a sleeve 10-1 and a first through hole.

Detailed Description

The technical solution is described in detail with reference to specific embodiments below.

As shown in fig. 1-6, a height-adjustable chair armrest comprises an armrest part 1, an armrest seat 2 and a lifting pressing member 3 for adjusting the height of the armrest seat, wherein the armrest seat 2 is connected with the lifting pressing member 3 through a hinged seat 4, a clamping sleeve 5 is arranged corresponding to the lifting pressing member 3, and the clamping sleeve 5 is fixed with a chair; the clamping sleeve 5 is provided with a plurality of groups of clamping grooves 5-1 and connecting grooves 5-2 communicated with the clamping grooves; the lifting pressing piece 3 comprises a transverse pressing head 3-1 and a longitudinal supporting rod 3-2, the transverse pressing head 3-1 is hinged with one end of the longitudinal supporting rod 3-2, the middle part of the longitudinal supporting rod 3-2 is rotatably installed through a first connecting rod 6, and a second connecting rod 7 matched with the clamping groove 5-1 and the connecting groove 5-2 is arranged at the other end of the longitudinal supporting rod 3-2.

More specifically, the lifting button 3 comprises an inner cylinder 3-3, and the longitudinal strut 3-2 is installed in the inner cylinder 3-3 and is hinged with the inner cylinder 3-3 through the first connecting rod 6.

More specifically, a strip-shaped hollow groove 3-4 matched with the second connecting rod 7 is formed in the inner cylinder 3-3, and the end of the second connecting rod 7 penetrates out of the strip-shaped hollow groove 3-4 and then extends into the clamping groove 5-1 and the connecting groove 5-2.

More specifically, the clamping groove 5-1 and the connecting groove 5-2 comprise two symmetrically arranged groups, which are respectively located at two sides of the clamping sleeve 5, so as to improve the reliability of the structure.

More specifically, as shown in fig. 7-9, a movable connecting plate 8 is arranged between the armrest seat 2 and the hinged seat 4, a plurality of groups of protruding ridges 8-3 arranged along the length direction are arranged on the top of the movable connecting plate 8, and a sliding groove 8-4 matched with the protruding ridges 8-1 is arranged at the bottom of the armrest seat 2; the mounting structure of the movable connecting plate 8 is as follows: the armrest seat 2 is provided with a hollow cavity, a sliding block 2-1 is arranged in the hollow cavity, and a hollow groove 2-2 communicated with the hollow cavity is arranged at the bottom of the armrest seat 2; a first upright post 4-1 is arranged at the top of the hinge seat 4, a first arc-shaped groove 8-1 matched with the first upright post 4-1 is formed in the movable connecting plate 8, and the first arc-shaped groove 8-1 is arranged along the length direction; the first upright post 4-1 penetrates through the first arc-shaped groove 8-1 and then is connected with the sliding block 2-1.

More specifically, a plurality of second arc-shaped grooves 8-2 are formed in the movable connecting plate 8, and second upright posts 4-2 matched with the second arc-shaped grooves 8-2 are arranged on the hinged base 4; the second arc-shaped groove 8-2 is arranged along the width direction.

More specifically, the armrest seat 2 comprises an armrest seat surface cover 2-3 and an armrest seat bottom cover 2-4 which are assembled together, and the slide block 2-1 is arranged in the armrest seat bottom cover 2-4.

More specifically, the joint sleeve 5 is externally covered with a connecting arm 9, and the joint sleeve 5 is fixedly connected with the seat through the connecting arm 9.

More specifically, a sleeve 10 for decoration is sleeved outside the connecting arm 9, the sleeve 10 is fixed with the bottom of the armrest seat 2 and can slide relative to the connecting arm 9, and a first through hole 10-1 for the transverse press head 3-1 to pass through is arranged on the sleeve 10.

In the practical application process, when needs carry out the altitude mixture control to the handrail, press horizontal button, can make vertical branch rotate around first connecting rod, make the second connecting rod of bottom break away from the screens groove, mention the handrail seat then the second connecting rod can slide on the spread groove, realize that the handrail freely goes up and down on the linking arm, reach the target height after, loosen horizontal button, second connecting rod and screens groove joint under reset assembly or manual operation, in this embodiment, preferably be provided with reset spring in horizontal button department, the substitute part that the shell fragment that resets etc. are obvious to technical personnel in the field of the art certainly, all belong to the utility model discloses a protection scope, no longer redundance here.

In addition, because the convex edge and the sliding groove are arranged between the movable connecting plate and the armrest seat, and the first arc-shaped groove matched with the first upright post is arranged on the movable connecting plate, when the front and rear positions of the armrest need to be adjusted, the armrest seat can slide back and forth relative to the movable connecting plate by pushing, so that the free adjustment of the front and rear positions of the armrest is realized; and the first arc-shaped groove can play a role in front and back limiting, and the armrest seat is prevented from accidentally sliding after being adjusted in place.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, many modifications and improvements can be made without departing from the inventive concept, and all of them belong to the protection scope of the present invention.

Claims

1. A height-adjustable chair armrest comprises an armrest part, an armrest seat and a lifting pressing piece for adjusting the height of the armrest seat, and is characterized in that the armrest seat is connected with the lifting pressing piece through a hinged seat, a clamping sleeve is arranged corresponding to the lifting pressing piece, and the clamping sleeve is fixed with a chair; the clamping sleeve is provided with a plurality of groups of clamping grooves and connecting grooves communicated with the clamping grooves; the lifting pressing piece comprises a transverse pressing head and a longitudinal supporting rod, the transverse pressing head is hinged to one end of the longitudinal supporting rod, the middle of the longitudinal supporting rod is rotatably installed through a first connecting rod, and a second connecting rod matched with the clamping groove and the connecting groove is arranged at the other end of the longitudinal supporting rod.

2. A height adjustable chair armrest as claimed in claim 1, wherein the lift button comprises an inner barrel, the longitudinal strut being mounted in the inner barrel and being hingedly connected to the inner barrel by the first link.

3. The height-adjustable armrest for seats as claimed in claim 2, wherein the inner cylinder is provided with a strip-shaped hollow groove for engaging with the second link, and the end of the second link protrudes from the strip-shaped hollow groove and then extends into the locking groove and the connecting groove.

4. The armrest of claim 1, wherein the locking slot and the connecting slot comprise two symmetrically disposed sets of slots respectively located on two sides of the locking sleeve.

5. The height-adjustable chair armrest as claimed in claim 1, wherein a movable connecting plate is arranged between the armrest seat and the hinged seat, a plurality of groups of protruding ribs are arranged on the top of the movable connecting plate along the length direction, and a sliding groove matched with the protruding ribs is arranged on the bottom of the armrest seat; the mounting structure of the movable connecting plate is as follows:

the armrest seat is provided with a hollow cavity, a sliding block is arranged in the hollow cavity, and a hollow groove communicated with the hollow cavity is formed in the bottom of the armrest seat;

a first upright post is arranged at the top of the hinge seat, a first arc-shaped groove matched with the first upright post is formed in the movable connecting plate, and the first arc-shaped groove is arranged along the length direction; the first upright post penetrates through the first arc-shaped groove and then is connected with the sliding block.

6. The height-adjustable chair armrest as claimed in claim 5, wherein a plurality of second arc-shaped grooves are arranged on the movable connecting plate, and a second upright post matched with the second arc-shaped grooves is arranged on the hinged seat; the second arc-shaped groove is arranged along the width direction.

7. A height adjustable chair armrest as claimed in claim 5, wherein the armrest seat comprises an armrest seat surface cover, an armrest seat bottom cover assembled together, the slider is disposed in the armrest seat bottom cover.

8. The height-adjustable chair armrest as claimed in claim 1, wherein a connecting arm is wrapped around the clamping sleeve, and the clamping sleeve is fixedly connected with the chair through the connecting arm.

9. The armrest as claimed in claim 8, wherein a sleeve for decoration is provided around the connecting arm, the sleeve is fixed to the bottom of the armrest seat and is slidable relative to the connecting arm, and a first through hole is provided in the sleeve for passing the lateral button.